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Dynamics of fast electron beams and bounded targets

AuthorsZabala, Nerea ; Rivacoba, Alberto
KeywordsSurface plasmon
Dielectric function
Cherenkov radiation
Electromagnetic force
Electron beam
Issue Date2015
CitationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 354: 105-108 (2015)
AbstractWe analyze the full relativistic force experienced by swift electrons moving close to planar films for the experimental conditions commonly used in electron energy loss spectroscopy in STEM. In metals the main effects derive from the dispersion of the surface plasmons, which are clearly observed in the EEL spectra. In insulators we explore the role played by the Cherenkov radiation (CR) emitted in the energy gap window. The focus is placed on the transverse force and different factors which may turn this force into repulsive, as reported in recent experimental and theoretical works.
Publisher version (URL)http://dx.doi.org/10.1016/j.nimb.2014.11.015
Identifiersdoi: 10.1016/j.nimb.2014.11.015
issn: 0168-583X
Appears in Collections:(CFM) Artículos
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